extjs4 - Is there any way to disable nodes of treeview in ExtJS 4 -


My purpose is to disable some nodes of tree view in the west region.

The snippet below shows: 

  root: {expanded: true, id: 'treeview1', children: [{"text" True: "True, ID: 'HS1', '** disabled **': true," ** hidden ** ": true}}}   
 Why does the disabled and hidden assets not work in EXTPS 4?  
 Is there a plugin to achieve this?   
 
 
 The nodes in the paperpellings are  Ext.data.NodeInterface  objects.  
 It does not have a disabled or hidden property, but it has  cls  and with it you can not add a  display: any  that hide it Node has been  
 Example:  
     
  1.  
     In the CSS file:  
      .x-hidden-node {display: none! Important:}}    
  2.  
     In the extjs code:  
      root: {expanded: true, id: 'treeview1', children: [{Text: 'Copy', Leaf: True, ID: 'HS1', CLS: 'X-Chip-Node'}]}     
     For disabled functionality, you can use the  beforeitemClick  event in PaperPenel in which you can read the disabled property manually.  
     Example:  
      Ext (Extttree.Panel ', {(...) Audience: {beforeitemclick: function (treewiewview, record, item, index , E, eops) {if. (record.raw & record.raw.disabled == true) {return false;} re-turned n true;}, itemclick: function (tree view, record, item, index, e, Eoop) {console.log (record, item);}}});

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